I'm having a difficult time painting areas of a particular color without going over the implied boundary. Please have a look at the picture below to see what I mean.
What is the best way of doing this? Even with a tiny brush and a steady hand, I end up over 1/2 mm over the boundary I'm supposed to paint, thus leaving an ugly residue. Do you mask for these kinds of situations? If so, is there a particular tape or will a typical painter's mask work?
Thanks in advance!

























